Iowa State Cyclones running back David Montgomery (32) celebrates his touchdown putting the Cyclones up 13-6 during the first half of their football game at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames.(Photo: Brian Powers/The Register)Buy Photo

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Iowa State Cyclones wide receiver Marchie Murdock (16) and Oklahoma State Cowboys cornerback A.J. Green battle for possession of a pass intended for Murdock in the final minute of their football game at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames. The pass was ruled an interception and Oklahoma State would go on to win 49-42.
Brian Powers/The Register

Iowa State Cyclones running back David Montgomery (32) dives in for a touchdown despite the efforts of Oklahoma State Cowboys linebacker Chad Whitener (45) during the second half of their football game at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames. Oklahoma State would go on to win 49-42.
Brian Powers/The Register

Oklahoma State Cowboys running back Justice Hill (5) is tackled by Iowa State Cyclones defensive back Kamari Cotton-Moya (5) during the second half of their football game at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames. Oklahoma State would go on to win 49-42.
Brian Powers/The Register

Iowa State Cyclones running back David Montgomery (32) dives in for a touchdown to put the Cyclones back up 41-34 during the second half of their football game at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames. Oklahoma State would go on to win 49-42.
Brian Powers/The Register

Oklahoma State Cowboys wide receiver Dillon Stoner (17) runs in for a touchdown putting OSU up 48-42 during the second half of their football game at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames. Oklahoma State would go on to win 49-42.
Brian Powers/The Register

Iowa State Cyclones wide receiver Allen Lazard (5) stretches for a pass during the second half of their football game at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames. Oklahoma State would go on to win 49-42.
Brian Powers/The Register

Iowa State Cyclones Allen Lazard (5), right, and Kamari Cotton-Moya (5), left, talk on the field following their 49-42 loss to Oklahoma State at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames.
Brian Powers/The Register

Iowa State Cyclones running back David Montgomery (32) is face masked by Oklahoma State Cowboys cornerback A.J. Green (4) during their football game at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames.
Brian Powers/The Register

Pass interference is called on Oklahoma State Cowboys safety Ramon Richards (7) as he defends Iowa State Cyclones wide receiver Deshaunte Jones (8) during the second half of their football game at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames. Oklahoma State would go on to win 49-42.
Brian Powers/The Register

Oklahoma State Cowboys wide receiver Marcell Ateman (3) catches a pass in the end zone over Iowa State Cyclones defensive back D'Andre Payne (1) to make the score 41-42 during the second half of their football game at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames. Oklahoma State would go on to win 49-42.
Brian Powers/The Register

Oklahoma State Cowboys wide receiver Marcell Ateman (3) runs after catching a pass during the second half of their football game at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames. Oklahoma State would go on to win 49-42.
Brian Powers/The Register

Iowa State head coach Matt Campbell high fives Iowa State Cyclones quarterback Zeb Noland (4) during the second half of their football game at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames. Oklahoma State would go on to win 49-42.
Brian Powers/The Register

Iowa State head coach Matt Campbell yells at the referee after a pass in the end zone was ruled an interception and not a catch for ISU during the second half of their football game at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames. Oklahoma State would go on to win 49-42.
Brian Powers/The Register

Iowa State Cyclones running back David Montgomery (32) is tackled during the first half of their football game against Oklahoma State at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames.
Brian Powers/The Register

Iowa State Cyclones quarterback Kyle Kempt (17) runs out of bounds during the first half of their football game against Oklahoma State at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames.
Brian Powers/The Register

Iowa State Cyclones quarterback Kyle Kempt (17) passes the ball during the first half of their football game against Oklahoma State at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames.
Brian Powers/The Register

Oklahoma State Cowboys defensive end Jarrell Owens (93) sacks Iowa State Cyclones quarterback Kyle Kempt (17) during the first half of their football game at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames.
Brian Powers/The Register

Iowa State Cyclones wide receiver Hakeem Butler (18) talks with Iowa State Cyclones quarterback Kyle Kempt (17) during the first half of their football game against Oklahoma State at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames.
Brian Powers/The Register

Darin Fitzgerald of Ankeny hugs her cousin Joel Lanning as another cousin, Dani Wallace of Ankeny waits her turn before Lanning an the Cyclones take on Oklahoma State at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames.
Brian Powers/The Register

Iowa State Cyclones wide receiver Allen Lazard (5) catches a pass during the first half of their football game against Oklahoma State at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames.
Brian Powers/The Register

Iowa State Cyclones wide receiver Hakeem Butler (18) can't come up with a pass during the first half of their football game against Oklahoma State at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames.
Brian Powers/The Register

Iowa State Cyclones wide receiver Allen Lazard (5) catches a pass in the end zone to put the Cyclones up 6-0 during the first half of their football game against Oklahoma State at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames.
Brian Powers/The Register

Iowa State Cyclones wide receiver Allen Lazard (5) celebrates a touchdown putting the Cyclones up 6-0 during the first half of their football game against Oklahoma State at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames.
Brian Powers/The Register

Iowa State Cyclones running back David Montgomery (32) runs around Oklahoma State Cowboys defensive end Jarrell Owens (93) during the first half of their football game at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames.
Brian Powers/The Register

Iowa State Cyclones running back David Montgomery (32) celebrates his touchdown putting the Cyclones up 13-6 during the first half of their football game at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames.
Brian Powers/The Register

Oklahoma State Cowboys running back Justice Hill (5) runs into the end zone for the Cowboys second touchdown and making the score 13-14 during the first half of their football game against Iowa State at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames.
Brian Powers/The Register

Iowa State Cyclones running back David Montgomery (32) takes the hand off and looks to handoff to Iowa State Cyclones wide receiver Trever Ryen (19) for the reverse during the first half of their football game against Oklahoma State at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames.
Brian Powers/The Register

Iowa State Cyclones head coach Matt Campbell celebrates Joel Lanning's (7) touchdown at the end of the second quarter to make the score 20-21 during the first half of their football game at Jack Trice Stadium on Saturday, Nov. 11, 2017, in Ames. The extra point was made tying the game at halftime.
Brian Powers/The Register

Kempt had the strong start he was looking for as he helped Iowa State quickly build up a 14-0 lead with touchdowns on the Cyclones’ first two possessions. He finished the first quarter by completing 10-12 passes for 95 yards and one score. But Kempt and the Iowa State offense quickly disappeared.

Iowa State would go on to punt on its next four possessions with him at quarterback. With 2:13 remaining, redshirt freshman Zeb Noland came into the game. Kempt may have been injured. He briefly left the sidelines but came back into the game before he came out.

Zeb Noland time: Jacob Park began the season as Iowa State's starting quarterback, Joel Lanning got some reps and then Kyle Kempt took over the job. Now redshirt freshman Zeb Noland is getting his shot. Noland, who had only played in two games this season, took over for Kempt during Iowa State's final possession of the first half. Noland was ready for his shot. He helped orchestrate a 91-yard scoring drive that ended with Lanning coming in at quarterback and finishing off the drive with a 1-yard touchdown to tie the game.

Special teams a struggle: Iowa State’s special teams unit has usually been a bright spot this season. But not Saturday. The biggest struggles came in the second quarter when Tymar Sutton touched a kickoff that was on its way out of bounds. The mistake pinned Iowa State deep on its own 9-yard line. The Cyclones couldn’t move the chains and were forced to punt. That didn’t work out either with Downing dropping in a 14-yard punt. Oklahoma State took advantage of the great field positon with a 32-yard scoring drive to tie the game 14-14. Downing struggled again on the next possession with a 25-yard punt that set up another Oklahoma State touchdown that would give the Cowboys the lead.